Cita APA (7th ed.)

Frankel, O. H., & Soulé, M. E. (1981). Conservation and evolution. Cambridge University Press.

Cita Chicago (17th ed.)

Frankel, O. H., i Michael E. Soulé. Conservation and Evolution. Londres: Cambridge University Press, 1981.

Cita MLA (9th ed.)

Frankel, O. H., i Michael E. Soulé. Conservation and Evolution. Cambridge University Press, 1981.